Blood is considered a suspension because it contains particles that can settle out.
A (heterogeneous) suspension is defined as a mixture between a liquid and particles of a solid. In the case, the particles do not dissolve. The particles and the liquid are mixed up so that the particles are dispersed throughout the liquid. They are "suspended" in the liquid. A key characteristic of a suspension is that the solid particles will settle and separate over time if left alone.
This is exactly what happens when anti-coagulated blood is left to stand alone for some time. Blood cells separate and settle from the plasma, the watery part of the blood.
Answer:
The chemical properties are then number 2 and 4:
- It reacts with metals to form metal hydroxide and hydrogen gas.
- It decomposes to form hydrogen and oxygen.
Justification:
The chemical properties can only be observed when the substance undergoes a chemical change, which is that the substance is transformed into one or more different substances. As result of a chemical change, the composition of the former substance changes, braking some chemcial bonds and formng new ones.
The number 1 states that the water reacts with metals to form metal hydroxide, meaning that the water is transformed into a new substance, the composition will not be H₂O andy more, since the atoms will be combined with atoms of different elements. Same, can be told about the number 2, which states that hydrogen and oxygen were obtained when water decomposed.
On the other hand, the thermal conductivity of water and the boiling point (the temperature at which the water evaporates) can be measured without changing the composition of the water, so those are physical properties.
ANSWER: D (Stimulus)is the name for a change in the environment that causes an organism to change its activity
It is important to convert into units of kelvin before using the ideal gas law because
Temperature is the denominator in the combined gas laws and can be derived in the idea gas law to the denominator.
Answer:
i think it's D tbh, just cus it was the scientist who did the work
